What is the Toughest Fiber? Explaining the Difference Between Toughness and Strength
                                
                                
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                                    7 min read                                
                            
                                While steel is often a benchmark for strong materials, a weight-for-weight comparison reveals that fibers like Dyneema are up to 15 times stronger. However, determining what is the toughest fiber is more complex than just strength, requiring an understanding of how materials absorb energy before fracturing.